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-rw-r--r--src/lib/rina_name.c331
1 files changed, 331 insertions, 0 deletions
diff --git a/src/lib/rina_name.c b/src/lib/rina_name.c
new file mode 100644
index 00000000..b9044277
--- /dev/null
+++ b/src/lib/rina_name.c
@@ -0,0 +1,331 @@
+/*
+ * RINA naming related utilities
+ *
+ * Sander Vrijders <sander.vrijders@intec.ugent.be>
+ * Francesco Salvestrini <f.salvestrini@nextworks.it>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#define OUROBOROS_PREFIX "name-utils"
+
+#include <ouroboros/logs.h>
+#include <ouroboros/common.h>
+#include <ouroboros/rina_name.h>
+
+#include <string.h>
+#include <math.h>
+#include <malloc.h>
+#include <stdlib.h>
+
+static char * strdup(const char * src)
+{
+ int len = 0;
+ char * dst = NULL;
+
+ if (src == NULL)
+ return NULL;
+
+ len = strlen(src) + 1;
+
+ dst = malloc(len);
+ if (dst == NULL)
+ return NULL;
+
+ memcpy(dst, src, len);
+
+ return dst;
+}
+
+rina_name_t * name_create()
+{
+ rina_name_t * tmp;
+
+ tmp = malloc(sizeof(rina_name_t));
+
+ tmp->ap_name = NULL;
+ tmp->api_id = 0;
+ tmp->ae_name = NULL;
+ tmp->aei_id = 0;
+
+ return tmp;
+}
+
+rina_name_t * name_init_from(rina_name_t * dst,
+ const char * ap_name,
+ unsigned int api_id,
+ const char * ae_name,
+ unsigned int aei_id)
+{
+ if (dst == NULL)
+ return NULL;
+
+ /* Clean up the destination, leftovers might be there ... */
+ name_fini(dst);
+
+ dst->ap_name = strdup(ap_name);
+ dst->api_id = api_id;
+ dst->ae_name = strdup(ae_name);
+ dst->aei_id = aei_id;
+
+ if (dst->ap_name == NULL ||
+ dst->ae_name == NULL) {
+ name_fini(dst);
+ return NULL;
+ }
+
+ return dst;
+}
+
+rina_name_t * name_init_with(rina_name_t * dst,
+ char * ap_name,
+ unsigned int api_id,
+ char * ae_name,
+ unsigned int aei_id)
+{
+ if (dst == NULL)
+ return NULL;
+
+ /* Clean up the destination, leftovers might be there ... */
+ name_fini(dst);
+
+ dst->ap_name = ap_name;
+ dst->api_id = api_id;
+ dst->ae_name = ae_name;
+ dst->aei_id = aei_id;
+
+ return dst;
+}
+
+void name_fini(rina_name_t * n)
+{
+ if (n == NULL)
+ return;
+
+ if (n->ap_name != NULL) {
+ free(n->ap_name);
+ n->ap_name = NULL;
+ }
+
+ if (n->ae_name != NULL) {
+ free(n->ae_name);
+ n->ae_name = NULL;
+ }
+}
+
+void name_destroy(rina_name_t * ptr)
+{
+ if (ptr == NULL)
+ return;
+
+ name_fini(ptr);
+
+ free(ptr);
+}
+
+int name_cpy(const rina_name_t * src,
+ rina_name_t * dst)
+{
+ rina_name_t * res;
+
+ if (src == NULL || dst == NULL)
+ return -1;
+
+ res = name_init_from(dst,
+ src->ap_name,
+ src->api_id,
+ src->ae_name,
+ src->aei_id);
+ if (res == NULL)
+ return -1;
+
+ return 0;
+}
+
+rina_name_t * name_dup(const rina_name_t * src)
+{
+ rina_name_t * tmp;
+
+ if (src == NULL)
+ return NULL;
+
+ tmp = name_create();
+ if (tmp == NULL)
+ return NULL;
+
+ if (name_cpy(src, tmp)) {
+ name_destroy(tmp);
+ return NULL;
+ }
+
+ return tmp;
+}
+
+#define NAME_CMP_FIELD(X, Y, FIELD) \
+ ((X->FIELD != NULL && Y->FIELD != NULL) ? \
+ strcmp(X->FIELD, Y->FIELD) : \
+ ((X->FIELD == NULL && Y->FIELD == NULL) ? 0 : -1))
+
+bool name_is_ok(const rina_name_t * n)
+{ return (n != NULL &&
+ n->ap_name != NULL &&
+ strlen(n->ap_name) &&
+ n->ae_name != NULL); }
+
+bool name_cmp(uint8_t flags,
+ const rina_name_t * a,
+ const rina_name_t * b)
+{
+ if (a == b)
+ return true;
+
+ if (a == NULL || b == NULL)
+ return false;
+
+ if (!(flags & NAME_CMP_ALL))
+ LOG_DBG("No flags, name comparison will be meaningless ...");
+
+ if (flags & NAME_CMP_APN)
+ if (NAME_CMP_FIELD(a, b, ap_name))
+ return false;
+
+ if (flags & NAME_CMP_API)
+ if (a->api_id != b->api_id)
+ return false;
+
+ if (flags & NAME_CMP_AEN)
+ if (NAME_CMP_FIELD(a, b, ae_name))
+ return false;
+
+ if (flags & NAME_CMP_AEI)
+ if (a->aei_id != b->aei_id)
+ return false;
+
+ return true;
+}
+
+bool name_is_equal(const rina_name_t * a,
+ const rina_name_t * b)
+{ return name_cmp(NAME_CMP_ALL, a, b); }
+
+static int n_digits(unsigned i)
+{
+ int n = 1;
+
+ while (i > 9) {
+ n++;
+ i /= 10;
+ }
+
+ return n;
+}
+
+#define DELIMITER "/"
+
+char * name_to_string(const rina_name_t * n)
+{
+ char * tmp;
+ size_t size;
+ const char * none = "";
+ size_t none_len = strlen(none);
+
+ if (n == NULL)
+ return NULL;
+
+ size = 0;
+
+ size += (n->ap_name != NULL ?
+ strlen(n->ap_name) : none_len);
+ size += strlen(DELIMITER);
+
+ size += (n->api_id == 0 ?
+ 1 : n_digits(n->api_id));
+ size += strlen(DELIMITER);
+
+ size += (n->ae_name != NULL ?
+ strlen(n->ae_name) : none_len);
+ size += strlen(DELIMITER);
+
+ size += (n->aei_id == 0 ?
+ 1 : n_digits(n->aei_id));
+ size += strlen(DELIMITER);
+
+ tmp = malloc(size);
+ if (!tmp)
+ return NULL;
+
+ if (sprintf(tmp, "%s%s%d%s%s%s%d",
+ (n->ap_name != NULL ? n->ap_name : none),
+ DELIMITER, n->api_id,
+ DELIMITER, (n->ae_name != NULL ? n->ae_name : none),
+ DELIMITER, n->aei_id)
+ != size - 1) {
+ free(tmp);
+ return NULL;
+ }
+
+ return tmp;
+}
+
+rina_name_t * string_to_name(const char * s)
+{
+ rina_name_t * name;
+
+ char * tmp1 = NULL;
+ char * tmp_ap = NULL;
+ char * tmp_s_api = NULL;
+ unsigned int tmp_api = 0;
+ char * tmp_ae = NULL;
+ char * tmp_s_aei = NULL;
+ unsigned int tmp_aei = 0;
+ char * tmp2;
+
+ if (s == NULL)
+ return NULL;
+
+ tmp1 = strdup(s);
+ if (tmp1 == NULL) {
+ return NULL;
+ }
+
+ tmp_ap = strtok(tmp1, DELIMITER);
+ tmp_s_api = strtok(NULL, DELIMITER);
+ if (tmp_s_api != NULL)
+ tmp_api = (unsigned int) strtol(tmp_s_api, &tmp2, 10);
+ tmp_ae = strtok(NULL, DELIMITER);
+ tmp_s_aei = strtok(NULL, DELIMITER);
+ if (tmp_s_aei != NULL)
+ tmp_aei = (unsigned int) strtol(tmp_s_aei, &tmp2, 10);
+
+ name = name_create();
+ if (name == NULL) {
+ if (tmp1 != NULL)
+ free(tmp1);
+ return NULL;
+ }
+
+ if (!name_init_from(name, tmp_ap, tmp_api,
+ tmp_ae, tmp_aei)) {
+ name_destroy(name);
+ if (tmp1 != NULL)
+ free(tmp1);
+ return NULL;
+ }
+
+ if (tmp1 != NULL)
+ free(tmp1);
+
+ return name;
+}
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